Remove ForceReclaimResources

content/renderer/gpu/render_widget_compositor.cc

Index: content/renderer/gpu/render_widget_compositor.cc
diff --git a/content/renderer/gpu/render_widget_compositor.cc b/content/renderer/gpu/render_widget_compositor.cc
index f09319c7b52bc214ca76ad6f87fab043fdbd4f78..3666836594c51ab75e8fab5d43a58a508f38ae32 100644
--- a/content/renderer/gpu/render_widget_compositor.cc
+++ b/content/renderer/gpu/render_widget_compositor.cc
@@ -949,6 +949,9 @@ void RenderWidgetCompositor::CompositeAndReadbackAsync(
                                              callback, base::Passed(&result)));
           },
           callback, base::Passed(&main_thread_task_runner)));
+  // Force a redraw to ensure that the copy swap promise isn't cancelled due to
+  // no damage.
+  SetNeedsForcedRedraw();
   layer_tree_host_->QueueSwapPromise(
       delegate_->RequestCopyOfOutputForLayoutTest(std::move(request)));